Citroën Relay Mk3 DPF Exhaust Pressure Sensor Pipe Line 2.2 Diesel 9677816180

Citroën Relay Mk3 DPF Exhaust Pressure Sensor Pipe Line 2.2 Diesel is a specialized exhaust system component responsible for accurately transmitting exhaust pressure signals to the sensor that works with the DPF (Diesel Particulate Filter). Thanks to its precise fit for the 2.2 Diesel engine in the Citroën Relay Mk3, the pipe ensures stable engine control unit operation and correct control of the filter regeneration process. It is a practical service solution for users who want to restore full system functionality without the need for costly replacement of larger components.

Specifications and technical data

• SKU: 9677816180
• Mark: Citroën
• Condition: Used
• OEM Part Number: 9677816180
• Substitutable numbers: 0281006300, 21812, 210812
• Fuel type: Diesel
• Part type: Sensor
• Category: Air Intake & Fuel Sensors

Purpose and function in the DPF system

The DPF pressure sensor pipe in the Citroën Relay Mk3 is responsible for transporting the exhaust pressure signal from the area around the particulate filter to the sensor, which then transmits the data to the engine control unit. A properly functioning pipe allows for:

• reliable reading of the pressure difference before and after the DPF filter,
• efficient assessment of the filter's saturation level,
• stable initiation of regeneration procedures,
• reduction of the risk of the engine entering limp mode. In combination with a properly functioning pressure sensor, this component supports safe diesel engine operation and maintenance of compliance with exhaust emission standards.

Compatibility with Citroën Relay Mk3 2.2 Diesel

The offered pipe has been designed with a specific model and engine unit in mind, which translates into proper routing in the engine bay and compatibility with factory mounts. As a result:

• installation is orderly and does not require modifications to the system,
• the original pipe routing geometry is maintained,
• the risk of chafing and thermal damage is minimized. Such a fit is particularly important in Diesel engines, where exhaust gas temperature and pressure are high, and incorrect pipe routing can lead to leaks or signal interference.

Benefits of using the original pipe

Choosing a DPF pressure sensor pipe dedicated to the Citroën Relay Mk3 brings a number of practical service advantages:

• maintaining operating parameters in accordance with the vehicle manufacturer's specifications,
• reducing the risk of DPF-related errors,
• easier diagnostics – the controller receives stable, repeatable signals,
• limiting unnecessary interventions in the exhaust system. This solution is particularly beneficial for workshops and users who want to restore the efficiency of the exhaust gas cleaning system in an orderly manner, without experimenting with random replacements.

Product characteristics and condition

The pipe belongs to the Air and fuel intake sensors group, although in practice it works in close connection with the exhaust system and the DPF filter, acting as a measuring medium for the pressure sensor. The product is offered as a used part, which allows for economical repair while maintaining the original design specifications. It is a good solution for vehicles used intensively, where both service costs and maintaining correct engine operating parameters are important.

Technical support and additional materials

To better understand the relationships between the pressure sensor pipe, the fuel system, and the engine control unit, it is worth referring to educational materials regarding the diagnostics and operation of fuel systems. Practical information on selecting components by OEM numbers, regeneration principles, and typical failure symptoms can be found in the article: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. If you are planning a comprehensive repair or upgrade of the engine area in your Citroën and need other components from the same group, such as vacuum hoses, pressure sensors, or air and fuel measuring elements, check the available parts in the Citroën Air and fuel intake sensors category.